earlier this year, david petraeus was the subject of another biography, by paula broadwell. >> when i was in kabul, i would do a lot of interviews on runs. >> reporter: nbc news confirmed that the fbi opened investigations into whether or not broadwell had access to e-mails or other computer information. officials say petraeus called and asked to see the president thursday, acknowledged the situation and offered to resign. the president asked him for 24 hours to consider the situation. today, while juggling the economic speech, he called and thanked him for extraordinary service to the united states for decades, and wishing him and his family the very best. >> from their perspective, the trust simply was lost. and you can't have a cia director when there is not perfect trust. >> reporter: diana feinstein called it an enormous loss's saying i wish he had not done it, but i understand. taking over, the highly respected deputy, michael moral. there will be meetings next week. general petraeus is not under investigation, and they don't expect the inquiry will reach criminal charges, we tr